whats wrong with my cougar the battery aint charging just replaced the alt and had the battery checked
The computer controls the charging, so may need to have the system live data scanned to see if the computer is turning the alternator on or you have broken wiring in the charging circuits.
a new alternator . should not charge a low batt. The batt should be charged in that case . Get a multi meter and check your voltage ,batt should be 12.5 V at the batt and with the car running you should get about 14
Check for battery voltage at the big wire on the alternator with the engine turned off and the key off. If you lack battery voltage then I would suspect the fusible link in that wire is open (bad). Also check the small wires at the alternator to see if they are parted under the insulation near the connector.
thank you all but is there a chance it can be the mega fuse in or dos the 02 have them
Possibly, did something else happen before or during the replacement of parts? You could just check for power on the large wire on the back of the alternator, if it has power then it's not a main fuse. I think we thought that those would have already been checked.
Maybe follow some of the suggestions and stop trying to make it difficult?
that's what it was thanks
Great, checking powers and grounds are always the first step, then move onto componet testing.
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